Infrared LED JSIR350-4

through-holeindustrial

Short description
High-modulation IR emitter designed for NDIR gas analysis. Nano-amorphous carbon membrane allowing membrane temperatures up to 850 °C for high and long-term stable radiative output. Supplied in a standard TO-39 package with cap, reflector and a soldered SiArc (silicon with AR coating) window, optimized for emission in the 2 to 15.5 µm wavelength range.

Main features

• Time constant: 12.5 ms
• High and long-term stable radiant output
• Long operational lifetime
• Environmentally robust due to soldered window (HermeSEAL® technology)
• Optimized for use with Micro-Hybrid IR detectors

Description
The JSIR 350 IR emitter in the HermeSEAL® option is a high-performance source for demanding gas analysis applications in industrial, medical and aerospace environments. HermeSEAL® technology bonds the filter/window to the package by soldering rather than adhesive, creating a hermetic seal that protects the sensitive membrane from harmful environmental influences and enhances lifetime and reliability.

The emitter is compatible with MTS thermopile detectors and MPS pyroelectric detectors. Further technical information is available in the datasheet.

Technical data

• Emission range (min): 2 µm
• Emission range (max): 15 µm
• Active area: 2.2 x 2.2 mm²
• Hot resistance: 40 ± 20 Ω
• Temperature coefficient: 500 ppm/K
• Time constant: 12.5 ms
• Nominal power consumption: 650 mW
• Operating voltage: 4.9 V
• Operating current: 132 mA
• Recommended operating mode: constant power mode
• Estimated lifetime: > 5000 h at 740 °C; > 100000 h at 610 °C
• Active area temperature: 610 ± 30 °C
• Maximum power consumption: 1,200 mW
• Maximum case temperature: 125 °C
• Maximum active area temperature: 850 °C
• Emitter window: silicon with anti-reflective coating (SiArc), soldered
• Socket/base: TO-39

Product specifications

• Product name / model: JSIR350-4
• Package: TO-39 with cap and reflector
• Window: SiArc (silicon with AR coating), soldered (HermeSEAL®)
• Wavelength range: approx. 2 – 15.5 µm
• Active area: 2.2 x 2.2 mm²
• Time constant: 12.5 ms
• Nominal power: 650 mW (operating current 132 mA, operating voltage 4.9 V)
• Max. power: 1,200 mW
• Max. case temperature: 125 °C
• Max. membrane temperature: 850 °C
• Estimated lifetime: >5000 h at 740 °C; >100000 h at 610 °C